The metabolic layer
for your coaching
Your clients come to you to build muscle, lose fat and perform better. Lumen shows you how their body is fueling between sessions, from a single breath at home.
Backed by researchers at the world's leading institutions
Lumen is the world's first handheld metabolic
measurement device
Each morning and around workouts, your client sees if the body is burning mostly fat or carbs, and gets daily carb and nutrition guidance. With your client's consent, the same data flows to you.
For the client
A reason to stay engaged
Early proof the plan
is working
Within days, clients see their fuel use shift. Feedback arrives between sessions, not weeks later.
A personalized plan built
for each day
Each morning's fat-or-carbs reading drives that day's carbs, nutrition and meal timing around training.
Behavioral change that creates
lasting habits
Fuel awareness, meal timing, training and recovery: the habits that keep results long term.
For the coach
Visibility between sessions
See every client's trends
in one place
With Lumen Connect, you follow every client's daily data and progress, without chasing food logs.
Coach with data,
not guesswork
Time carbs and protein around training, keep the deficit smart instead of extreme, and help clients keep the muscle they work for.
Earn from
the first device
No inventory and no upfront cost. You share your link, and you earn on every device sold through it.
40+ integrations
Sync Lumen with your favorite health apps and wearables for a seamless, data-driven experience.
Built for every client goal
Lose fat, keep muscle
Daily fuel data and carb guidance help clients lose fat without under-fueling their training, so the muscle stays.
Clients on GLP-1s
Clients on GLP-1 medications, under their doctor's care, need enough fuel and protein to protect muscle. Lumen helps them build the daily habits that support it.
Women's health
Metabolism shifts across menstrual phases and menopause. Lumen's breath data reflects those changes, so training and nutrition match the body as it is now.
Performance and longevity
For optimizers: see how food, training, sleep and recovery change fuel use, and track metabolic flexibility over time.
Engaged clients get better results
Lumen gives your clients a reason to stay engaged every day, resulting in:
45%
of Lumen users lost more than
10% of their body weight¹
30%
Improvement in users'
metabolic flexibility²
85%
of Lumen users feel more
confident about nutrition³
How Lumen works with your coaching
No inventory and no upfront cost. You share your link, Lumen ships the device and supports your clients, and you earn from the first device.
Ready to use
out-of-the-box device
Lumen ships the device directly to your client and handles payment, activation, app and technical support.
Real-time metabolic data
for you and your clients
With your client's consent, they connect to you in Lumen Connect, so you see their data from day one.
A 360° view in one
monthly report
A monthly report for each client combines Lumen data with their apps and wearables, with written commentary.
Content in
your own voice
We prepare short videos, captions and a client guide with you, so sharing Lumen with your community is easy.
Trusted by health experts
Innovative research, groundbreaking applications
Validation study
Lumen's measurement accuracy was validated in a peer-reviewed study, establishing Lumen's accuracy to be on par with the gold standard (RER) for metabolic measurements.
Prediabetes research
Prediabetes participants using the Lumen device for 12 weeks achieved weight loss as well as reduced body fat, HbA1c, waist circumference, systolic blood pressure, and triglycerides.
Lumen's fasting study
This research revealed that Lumen's sensitivity to variations in carb intake, fasting duration, BMI, and gender enables it to account for individual differences and assist users in optimizing their fasting routines.
Women's health research
Lumen's study revealed that women burn more carbs in the follicular phase and more fats in the luteal phase. Moreover, menopausal women on hormone replacement therapy (HRT) wake up burning more fat compared to women not on HRT.
Ready to bring Lumen
to your clients?
No inventory. No upfront cost. You earn from the first device.
When your mitochondria use carbs as fuel, they release more CO₂ into your blood, and when they burn fat, they release less CO₂. Lumen analyzes the CO₂% in your breath and determines if you are using mostly fat or carbs for fuel based on the CO₂ concentration.
Lumen's technology is validated by multiple peer-reviewed scientific studies and is proven to measure metabolism as accurately as the gold-standard metabolic cart. Read the peer-reviewed paper.
No. Lumen works with coaches as affiliates. You get your own affiliate link and code, your client orders Lumen through your link, and Lumen ships the device directly to your client. You earn a commission on every device sold through your link, starting with the first one. The commercial terms are part of your affiliate agreement. Contact us, and our team will send you the program materials and your affiliate link.
With your client's consent, they connect to you in Lumen Connect, so you see their data from day one. You follow every client's trends in one place, and you get a monthly report for each client.
Lumen handles payment, shipping, activation, the app and technical support, so your time stays on coaching.
Yes. If you want to include Lumen inside your own coaching package or challenge, we can also offer devices at partner pricing. This is optional. The affiliate model is the simplest way to start.
Lumen is for anyone looking to improve their metabolic health, manage their weight, boost their energy levels, support their workout routine, and live happier and longer lives.
If you are under 16 years of age, pregnant, breastfeeding, or suffer from the following conditions, please consult a medical professional before using Lumen:
Diabetes
Severe asthma
COPD
Additionally, Lumen's nutritional recommendations may not be suitable for people with:
Kidney disease
Cancer
Thyroid disorder
Yes, we offer a one-year warranty from the date the device is delivered to you. If your device or charging dock are damaged by manufacturing defects during that period, we'll fix or replace them free of charge. You can read our full warranty policy here.
¹Cross-sectional study of 828 Lumen users
²Retrospective analysis of 7,200 Lumen users on GLP-1s
³Community survey of 2,000 Lumen users
How do I get Lumen
for my clinic?
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